# Billing (/docs/billing)

Tiers, allowance, overage, and usage alerts.



Billing has two parts: a flat monthly fee that includes a token allowance,
and per-token overage when you exceed it. Manage everything in
[dashboard/billing](/dashboard/billing).

## Tiers [#tiers]

| Tier       | Notes                                                         |
| ---------- | ------------------------------------------------------------- |
| Tier 1     | Flat monthly + included allowance. Self-serve.                |
| Tier 2     | Higher flat monthly + higher allowance + contractual privacy. |
| Enterprise | Custom; data is contractually excluded from training.         |

## Overage [#overage]

Once your included allowance is consumed, additional tokens bill at the
metered price for your tier. There is no implicit pause — usage continues
to accrue. Pay-as-you-go billing happens in the next invoice cycle.

## Usage alerts [#usage-alerts]

Org admins set a percentage threshold in
[dashboard/limits](/dashboard/limits). When usage crosses the threshold,
the org admin gets an email. The alert fires once per billing period.

Refunds are credited net of usage on the invoice they applied to.